Finding the Fourth Proportional to 1,260,724,194.56, 1,889,581,756.68 and 586,772,379.92
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Solution
The fourth proportional to 1,260,724,194.56, 1,889,581,756.68 and 586,772,379.92 is: 879,458,321.82
Step by Step Solution
- Step 1: Write the proportion equation
1,260,724,194.56 : 1,889,581,756.68 = 586,772,379.92 : x - Step 2: Convert to fraction form
1,260,724,194.56/1,889,581,756.68 = 586,772,379.92/x - Step 3: Cross multiply
1,260,724,194.56x = 1,889,581,756.68 × 586,772,379.92 - Step 4: Simplify right side
1,260,724,194.56x = 1,108,754,384,420,537,856 - Step 5: Solve for x
x = 1,108,754,384,420,537,856/1,260,724,194.56 - Step 6: Final answer
x = 879,458,321.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.